In this very simple and easy tutorial, here’s how to have colourful folders in macOS Monterey. Steps Right-click on the folder that you want to change the colour for, and click on Get Info . Click to select the blue folder icon on the top left of the Get Info window. Simultaneously press the Command and C buttons on your keyboard to copy the icon. From Spotlight Search, type Preview and press Enter. Open the File menu and click on New from Clipboard . The blue folder icon is now transferred to Preview for modification. Open the Markup Toolbar and click on the Adjust Colour icon. Move the sliders in Saturation, Temperature, Tint and Sepia to change the colour as desired. Once the color has changed to the one you want, select the folder icon with the new colour from the left side of the Preview window, and press Command and C to copy. Go back to the Get Info window of the folder, select the folder icon from the top left and press Command and V to paste the new coloured folder